Acetoacetyl CoA is the precursor of HMG-CoA in the mevalonate pathway, which is essential for cholesterol biosynthesis. It also takes a similar role in the ketone bodies synthesis (ketogenesis) pathway of the liver. In the ketone bodies digestion pathway (in the tissue), it is no longer associated with having HMG-CoA as a product or as a reactant.
It is created from acetyl-CoA, a thioester, which reacts with the enolate of a second molecule of acetyl-CoA in a Claisen condensation reaction, and it is acted upon by HMG-CoA synthase to form HMG-CoA. During the metabolism of leucine, this last reaction is reversed. Some individuals may experience Acetoacetyl-CoA deficiency. This deficiency is classified as a disorder ketone body and isoleucine metabolism that can be inherited. Additional mutations include those with the enzymes within pathways related to Acetoacetyl CoA, including Beta-Ketothiolase deficiency and Mitochondrial 3-hydroxy-3-methylglutaryl-CoA Synthase mutation.
Additionally, it reacts with NADPH-dependent acetoacetyl-coenzyme A reductase, also known as PhaB, in a pathway that produces polyester polyhydroxyalkanoate (PHA). The reduction of acetoacetyl-coA by Pha creates (R)-3-hydroxybutyryl-CoA, which polymerizes to PHA. The pathway is present in bacteria such as Ralstonia eutropha and the PCC6803 strain of Synechocystis. Mover over, Acetoacetyl-CoA is involved with neuronal development involving lipogenesis and providing fats and cholesterol for neuronal cells. |
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InChI=1S/C9H12N2O6/c12- 3- 4- 6(14) 7(15) 8(17- 4) 11- 2- 1- 5(13) 10- 9(11) 16/h1- 2,4,6- 8,12,14- 15H,3H2,(H,10,13,16) /t4- ,6- ,7- ,8- /m1/s1 |
DRTQHJPVMGBUCF-XVFCMESISA-N |
OC[C@H]1O[C@H]([C@H](O)[C@@H]1O)n1ccc(=O)[nH]c1=O |
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Mus musculus
(NCBI:txid10090)
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Source: BioModels - MODEL1507180067
See:
PubMed
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Daphnia magna
(NCBI:txid35525)
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See:
Mixtures of similarly acting compounds in Daphnia magna: From gene to metabolite and beyondTine Vandenbrouck, Oliver A.H. Jones, Nathalie Dom, Julian L. Griffin, Wim De CoenEnvironment International 36 (2010) 254-268
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Saccharomyces cerevisiae
(NCBI:txid4932)
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Source: yeast.sf.net
See:
PubMed
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Escherichia coli
(NCBI:txid562)
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See:
PubMed
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Homo sapiens
(NCBI:txid9606)
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See:
DOI
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human metabolite
Any mammalian metabolite produced during a metabolic reaction in humans (Homo sapiens).
drug metabolite
fundamental metabolite
Any metabolite produced by all living cells.
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